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Old May 6, 2007, 05:54 PM   #3
armedandsafe
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Join Date: January 9, 2005
Location: Moses Lake WA
Posts: 1,001
Load two magazines. Fire one by holding the piece vertical and slowly lowering it for each shot. Calculate your high, low and ES. Fire the other magazine and hold it diferently oriented for each round (muzzle down, muzzle kept level after firing, shake it abit, etc.) and see what the spread is then.

If firing all rounds using the same orientation produces a significantly tighter spread, your problem probably is too little volume in the case. We are not talking about grains/weight here, but the space occupied by the powder. Small amounts of powder are known to cause erratic ignition and burn rates. Some think that there is a volume at which one can get "detonation," causing a "kaboom," whereas a larger volume of powder won't.

Pops
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Last edited by armedandsafe; May 6, 2007 at 06:31 PM. Reason: can't spell sometimes
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